/**
 * Migration: 034 — memory_review_queue_health_snapshot (Issue #294)
 * Version: 34.0
 */
import type Database from 'better-sqlite3';
import type { Migration } from '../types.js';
export declare class ReviewQueueHealthSnapshotMigration implements Migration {
    version: string;
    name: string;
    description: string;
    private tableExists;
    private indexExists;
    validateBefore(db: Database.Database): Promise<void>;
    up(db: Database.Database): Promise<void>;
    down(db: Database.Database): Promise<void>;
    validateAfter(db: Database.Database): Promise<void>;
}
export default ReviewQueueHealthSnapshotMigration;
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